Adjustable lever and link.



G. J. HENRY, JR. ADJUSTABLE LEVER AND LINK.

APPLIGA'TION FILED OCT. 5, 1 9 12.

1;Q92,1 Patented Mar. 31, 1914b 2 SHEETS-SHEET 1.

-G. J. HENRY, JR. ADJUSTABLH'LEVER AND LINK. APPLICATION FILED HOT. 5, 1912.

1,092,, 102; Patented Mar. 31, 1914.

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i ADJUSTABLE LEVER AND LINK.

resales.

Specification of Letters Patent.

Patented liter. 3 iiliet.

Application filed October 5, 1912. Serial No. 724,143.

T 0 all whom it may concern Be itvknown that I, Gsoncn J. HENRY, J12, a. citizen of the United States, residing in San. Francisco, in. the county of San Francisco and State of California. have. invented a new and useful Adjustable Lever and Link, of which the following is a specification. v The transmission of mechanical inotion through the instrumentality of a l e er and connecting piece. in all kinds of machinery is usually accomplished through the pivoting of the connecting'piece on a pin or iulcrtun made solid with the arm of the lever and in cases where the pin is placed in the con-- necting piece, it swivels in a hole in the lever, thus preventing any adjustment of the length of the connecting rod or piece,

In thecase of the wicket gates of turbine water wheels for whith my adjustable connecting lover is particularly adapted, there are anunuber of gate stems on which the levers are fitted each usually with a key and each lever is then provided with a connecting link engaging with a rigid ring concentric with the entire set of gate connectionsthe partial rotation of this gate ring will then cause the swinging of all the levers and therefore the wicket gates cai'lsin zall the gates to swing the same amount. When swinging in one direction al-lcthe open and in the opposite direction they all. close the closure must be accurate to prevent water leakage--and it sometimes happens that. due to stones or sticks getting" in some of the passage ways, the movement to close the gates forces some of them against the ol struction, causing a bending of the gate stem or other parts and thus distorting the position of some oil the gates more than the others and preventing full closure and otherwise disturbing the action and results ob tained from the machine. Also in machining and assembling the different parts it frequently found that slight diilerenccs t'XlSlipreventing all the gates occupying exactly the same position with respect, to the gate ring and governing or controlling apparatus. To overcome these difficulties and secure a perfect adjustment of the different parts with respectto each other and with respect to the primary source of Il'l0\ ement,

I construct the lovers and connecting rods through the several. part section of fulcrum block; Fig.

which- Figure 1 is a. front view'of theadjustable lever connection with I partsh ssemhled; Fig. 2 a cross section at 1'1 ht angles thereto s; Fig lithe preblock; Fig. 5.- cross 5 the spanner and wrench showing mode of making the adjustment; Fig. 6 showing a portion 'o'l. the gate ring and my adjustable lever connections applied to a turbine water wheel.

lVhile here described and illustrated applied to the gate operating mechanism of turbine water wheels it must be borne in mind that I donot limit inysell to its application to this class of apparatus as it can ferred form of fulcrum rcadily be used in various classes of appaatus and machines for accomplishing the same useful purpose, Similar letters refer to similar throughcult the several views.-

The lever A is carried on the shaft B to which it is secured by the key C. The opposite end of the lever A is drilled out to receive the fulcrum block or pivot .D in which isbored the hole E oil center. Block D turns freely in lever A without lost linotion. This block may he provided with a shoulder to prevent its displacement where necessary although in ordinary cases it. may be made without this. Also the link or cornice-ting: rod Gr may serve as a shoulder on the oppo site side. by the capscrew F and about which the block. I) may freely turn until clan:

parts ed. the hole E being provided. to lit over same freely but witl'lout lost motion, The screw i is threaded into the connecting rod or link. 6- which may be coni'icl'rtcd at its other end by a able pin H. if new thescrew l hc tightened against the block TD in the threads of the connecting rod G. then hlock l) held This fulcrur'n block 1) is secured against rotation and it may swivel free" in the lover about the circular joint I. l. the screw F he loosened and the lllOCli turned partially around by the spanner K, who e projecting pin L engages into the "ole in. and the screw it again clainned illellistzlllfl'i between the centers of the pin ill and the center oi rotation of the hloclc I) will la been increased or decreased and it will seen that by degrees of rotation the dis l (Iii The, connecting rod.

'ciampei ta @i e. lever A or on j; -.which the pmll is afixed and-secure the m: v-

tancu between the centers maybe as indicated in Fig. 1 from M m N thus em abling gm 'aiijazstabie movement of shaft B-With respect t0 vaim(serum? 0:? the pin p1: iiiik G. may be maie the; ecceniric adjusting of any length ind block D may be'st atieitner enci O1 it maybe be: part to smile tesuit.

' .1. The combinatio r of two members and 'a link, oiie'of said members being pz ovided an ajustabie f with a cylindrical opening,

therein, sa1 i block biock tharein, saiai block; beingproiiided with 15 2. In gate epemiing mechanism, jibe combination of a memo ante be moved, an ad justable pivot block rotatably mounted having an eccentric spening, and .a, pin in said opening providegi with clamping devices.

.' GEORGE Witmasses: PERCY E. 515mm, Emu. YOUNG;

.1.. HEM-"i1, JR. 

